In a joint statement, the royal family said the BBC documentary "The Princes and the Press" gives credibility to "overblown and unfounded claims."
Markle accompanied Prince Harry, who wore a tuxedo pinned with four of his own service medals, to honor veterans at the USS Intrepid Gala in New York.
Harry's comments came as a study revealed he and Meghan Markle were targeted with coordinated harassment by a small number of Twitter accounts.
Prince Harry said Jack Dorsey never responded to his email about Twitter "allowing a coup to be staged," which was sent the day before January 6.
Princess Mako and Prince Harry both decided to leave royal life behind for love. But her "dramatic exit" is the only similarity between the two.
Idris Elba previously revealed that Meghan Markle sent him a playlist ahead of his DJ performance at the royal couple's wedding reception.
Sharon Osbourne quit the show earlier this year following a heated debate about racism after she defended Piers Morgan.
Meghan Markle and Prince Harry reportedly ordered fried chicken and waffles, spring rolls, fried catfish, and sides - all of which our reporter tried.
Meghan Markle and Prince Harry's trip to New York City included hidden nods to Princess Diana, Archie, and their wedding day.
Prince Harry and Meghan Markle didn't bring their kids on their New York trip, but Harry honored Archie through an engraved folio during the visit.
Prince Harry and Meghan Markle's New York itinerary is similar to Prince William and Kate Middleton's, but British tabloids are criticizing the visit.
"Harry & Meghan: Escaping the Palace" premiered on Lifetime earlier this month. Here's how the actors compare to the real-life royals.
The comedian joked about Prince Charles needing Archie to teach him how to dance while Josh O'Connor, who plays him in "The Crown," laughed.
The Time cover photo marks the first time Prince Harry and Meghan Markle have posed for the cover of a magazine together.
Sarah, Duchess of York, recently said she thought her late sister-in-law Princess Diana would support Harry and Markle's step back from royal life.
Meghan Markle, who recently turned 40, is three years older than Prince Harry. Here are the age differences between other famous royal couples.
Both Harry and Edward were popular princes in their youth who were known for their love of partying before they became passionate about the military.